1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
notsponge [240]
3 years ago
14

Solve: A = 4pir2 for r.

Mathematics
1 answer:
Airida [17]3 years ago
5 0
 <span>r means radius so it can't be negative. 

<=> 

A = 4 pi r² 

r = sqr (A / 4pi) 
</span>
You might be interested in
Ja'kniya and Alayjah are shopping at the Apple Store. Ja'kniya bought 4 screensavers and 3 Otterboxes for $29. Alayjah bought 6
Katarina [22]

Answer:  Each screensaver costs $2 and each Otterbox costs $7.

Step-by-step explanation:

Let x = Cost of each screensaver and y = cost of each Otterbox.

As per given, 4x+3y=29       (i)

6x +2y = 26  (ii)

Divide both sides of (i) by 2 and the multiply it by 3 on sides , we get

9x+3y=39    (iii)

Eliminate (i) from (iii) , we get

5x = 10

⇒ x = 2  [Divide both sides by 5]

Put value of x in (i), we get

4(2)+3y=29

⇒ 8+3y= 29

⇒ 3y= 21

⇒ y =7 [Divide both sides by 7]

Hence, Each screensaver costs $2 and each Otterbox costs $7.

7 0
3 years ago
Solve 2(x + 1) = 2x + 5.
BlackZzzverrR [31]

Answer:

No solutions

Step-by-step explanation:

2(x+1)=2x+5

Expand the parentheses:

2x+2=2x+5

Subtract 2x from both sides:

2=5

Since this is not true, this equation has no solutions. Hope this helps!

4 0
3 years ago
Read 2 more answers
Solve each equation by graphing the related function. If the equation has no real-number solution, write no solution. 1/4x^2-4=0
quester [9]
The answer is B.

I hope this helps. :)
3 0
3 years ago
What is the slope of the line that passes through the points (-8, -3)(−8,−3) and (-12, -3) ?(−12,−3)? Write your answer in simpl
Darya [45]

Answer:

\\  \frac{y2 - y1}{x2 - x1}  =  \frac{ - 3 - ( - 3)}{ - 12 - ( - 8)}  =  \frac{ - 3 + 3}{ - 12 + 8}  =  0 \div ( - 4) = 0

6 0
2 years ago
In the ordered (7,8) which number is the X COORDINATE?
PSYCHO15rus [73]

Answer:

7

Step-by-step explanation:

(x,y)

8 0
2 years ago
Read 2 more answers
Other questions:
  • 1. If i have 16 triangles. How many would be needed for me to shade if i had a percentage of 75%.
    9·2 answers
  • You gave $1,500 in bonuses to two employees. one employee received $200 more than the other employee. what was the amount of the
    8·2 answers
  • List all the factors of 27.
    14·2 answers
  • ( Will give Brainliest) Please Help <br> Solve the equation for y.<br><br> 6 = 4x + 9y
    10·1 answer
  • A rectangular prism is 6 inches long, 3 inches wide, and 2 inches high. What is its volume?
    9·2 answers
  • When factored completely, the expression 3x? – 9x + 6<br> equivalent to<br> is
    5·1 answer
  • What is the exact value of the exponential equation, 5(10)4x=75 ?
    15·1 answer
  • Triangle ABC has a perimeter of 22cm I WILL MARK YOU AS BRAINLIEST
    13·1 answer
  • What times 2 is -9? plz help
    10·1 answer
  • jamal plans to save for a new scooter that costs 48 dollars. the sales tax rate is 5% how much will jamal need to save
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!